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TPS552872-Q1

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Automotive, 36-V, 4-A fully integrated buck-boost converter

TPS552872-Q1

ACTIVE

Product details

Iout (max) (A) 2.5 Vin (min) (V) 3 Vin (max) (V) 36 Topology Buck-Boost Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, UVLO adjustable Vout (min) (V) 0.8 Vout (max) (V) 22 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00076
Iout (max) (A) 2.5 Vin (min) (V) 3 Vin (max) (V) 36 Topology Buck-Boost Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, UVLO adjustable Vout (min) (V) 0.8 Vout (max) (V) 22 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00076
VQFN-HR (RYQ) 21 15 mm² 5 x 3
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Wide input and output voltage range
    • Wide input voltage range: 3.0 V to 36 V
    • Programmable output voltage range: 0.8 V to 22 V
    • ±1% reference voltage accuracy
    • Adjustable output voltage compensation for voltage droop over the cable
    • ±5% accurate output current monitoring
  • High efficiency over entire load range
    • 96.7% efficiency at V IN = 12 V, V OUT = 20 V and I OUT = 1.5 A
    • 98.3% efficiency at V IN = 12 V, V OUT = 12 V and I OUT = 2 A
    • Programmable PFM and FPWM mode at light load
  • Avoid frequency interference and crosstalk
    • Optional clock synchronization
    • Programmable switching frequency from 200 kHz to 2.2 MHz
  • EMI mitigation
    • Optional programmable spread spectrum
    • Lead-less package
  • Rich protection features
    • Output overvoltage protection
    • Hiccup mode for output short-circuit protection
    • Thermal shutdown protection
    • 4 A average inductor current limit
  • Small solution size
    • Maximum switching frequency up to 2.2 MHz
    • 3.0-mm × 5.0-mm HotRod™ QFN package
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Wide input and output voltage range
    • Wide input voltage range: 3.0 V to 36 V
    • Programmable output voltage range: 0.8 V to 22 V
    • ±1% reference voltage accuracy
    • Adjustable output voltage compensation for voltage droop over the cable
    • ±5% accurate output current monitoring
  • High efficiency over entire load range
    • 96.7% efficiency at V IN = 12 V, V OUT = 20 V and I OUT = 1.5 A
    • 98.3% efficiency at V IN = 12 V, V OUT = 12 V and I OUT = 2 A
    • Programmable PFM and FPWM mode at light load
  • Avoid frequency interference and crosstalk
    • Optional clock synchronization
    • Programmable switching frequency from 200 kHz to 2.2 MHz
  • EMI mitigation
    • Optional programmable spread spectrum
    • Lead-less package
  • Rich protection features
    • Output overvoltage protection
    • Hiccup mode for output short-circuit protection
    • Thermal shutdown protection
    • 4 A average inductor current limit
  • Small solution size
    • Maximum switching frequency up to 2.2 MHz
    • 3.0-mm × 5.0-mm HotRod™ QFN package

The TPS552872-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS552872-Q1 integrates four MOSFET switches providing a compact solution for a variety of applications. The TPS552872-Q1 has up to 36V input voltage capability. When working in boost mode, the TPS552872-Q1 can deliver 30 W from a 12-V input. It is capable of delivering 25 W from 9-V input voltage.

The TPS552872-Q1 employs an average current-mode control scheme. The switching frequency is programmable from 200 kHz to 2.2 MHz by an external resistor and can be synchronized to an external clock. The TPS552872-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS552872-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit, output short circuit protection. The TPS552872-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS552872-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0-mm × 5.0-mm QFN package.

The TPS552872-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS552872-Q1 integrates four MOSFET switches providing a compact solution for a variety of applications. The TPS552872-Q1 has up to 36V input voltage capability. When working in boost mode, the TPS552872-Q1 can deliver 30 W from a 12-V input. It is capable of delivering 25 W from 9-V input voltage.

The TPS552872-Q1 employs an average current-mode control scheme. The switching frequency is programmable from 200 kHz to 2.2 MHz by an external resistor and can be synchronized to an external clock. The TPS552872-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS552872-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit, output short circuit protection. The TPS552872-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS552872-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0-mm × 5.0-mm QFN package.

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Technical documentation

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Type Title Date
* Data sheet TPS552872-Q1, Automotive, 36-V, 4-A, Fully Integrated Buck-boost Converter datasheet PDF | HTML 26 Jun 2023
Functional safety information TPS552872-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 14 Aug 2023
EVM User's guide TPS552872EVM-029, TPS552872, TPS552872-Q1 Evaluation Module User's Guide PDF | HTML 31 Jul 2023
Certificate TPS552872EVM-029 EU Declaration of Conformity (DoC) 20 Jul 2023

Design & development

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Evaluation board

TPS552872EVM — TPS552872 evaluation module for buck-boost converter

The TPS552872EVM-029 integrates four MOSFET switches providing a compact device for a variety of applications. Using the TPS552872, a high-performance and high-efficiency synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails.

User guide: PDF | HTML
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VQFN-HR (RYQ) 21 View options

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